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1 Ιουν 2023 · The purpose of the Oracle DECODE function is to perform an IF-THEN-ELSE function. It’s similar to a CASE statement, but CASE is a statement where DECODE is a function. It allows you to provide a value, and then evaluate other values against it and show different results.
This tutorial shows you how to use the Oracle DECODE() function to add the procedural if-then-else logic to SQL queries.
6 Αυγ 2024 · This tutorial provides a comprehensive guide to using the SQL DECODE() function in Oracle. I will also compare DECODE() to CASE WHEN in Oracle and help you understand when to use each function. Finally, I will provide code for the equivalent transformations in SQL Server, PostgreSQL, and MySQL.
16 Ιαν 2011 · You can use IF() where in Oracle you would have used DECODE(). mysql> select if(emp_id=1,'X','Y') as test, emp_id from emps;
Oracle Database 10g: SQL Fundamentals I 1-2 1-2 Copyright © 2004, Oracle. All rights reserved. Objectives After completing this lesson, you should be able to do the following: • List the capabilities of SQL SELECTstatements • Execute a basic SELECTstatement • Differentiate between SQL statements and iSQL*Plus commands Objectives
13 Νοε 2019 · The DECODE () function accepts two parameters which are the encoded string to be decoded and the password string to decode the encoded string. Syntax: DECODE(encoded_string, password_string); Parameters Used: encoded_string – It is used to specify the encoded string that is to be decoded.
This Oracle tutorial explains how to use the Oracle / PLSQL DECODE function with syntax and examples. The Oracle / PLSQL DECODE function has the functionality of an IF-THEN-ELSE statement.
